Select the correct answer (Ignore the one already clicked)
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Work Shown:
x = number of weeks
y = number of tests
slope = rise/run
slope = (change in y)/(change in x)
slope = 27/36
slope = (9*3)/(9*4)
slope = 3/4
A slope of 3/4 means that there are 3 tests for every 4 weeks.